Miner&#39;s lamp



Patented Dec. 29, 1925.

UNITED STATES P-ATENT OFFICE.

SAMUEL '1. $603!, OF FRANKFORT HEIGHTS, ILLINOIS, ASSIGNOB OF ONE-HALF TO COLEMAN L. JONES, OF FRANKFORT HEIGHTS, ILLINOIS.

mmnn's LAMP.

Application filed August 12, 1922. Serial No. 581,418.

To all w ham it may concern Be itknown that I, SAMUEL T. SCOBY, a citizen of the United States, residing at Frankfort Heights, in the county of- Franklin and State of Illinois, have invented certain new and useful Improvements in Miners Lamps, of which the following is a spec ification, reference being had to the accompanying drawings.

This invention relates to illuminating means, and more particularly to miners lamps.

An object of the invention is to provide a lamp of this character having several sources of light in the one structure.

Another object of the invention is to provide a lamp of this character having several sources of light capable of being used simultaneously or individually.

It is a further object of the invention to provide a light of this character including several sources of light, each source of light having a separate gas compartment and each gas compartment having a water supply common to both gas compartments.

It is a still further object of the invention to provide a lamp of this character wherein each gas compartment is provided with a valve.

With these and other objects in view, the invention consists in the improved construction and arrangement of parts to be hereinafter more particularly described, fully claimed and illustrated in the accompanying drawings, in which Figure 1 is a view in elevation of a miners lamp constructed in accordance with an embodiment of the invention;

Figure 2 is a longitudinal sectional view with the valve mechanism removed;

Figure 3 is a transverse sectional view with the valve mechanism applied; and

Figure 1 is a top plan view of the structure shown in Figure 1.

Referring to the drawings, 5 designates a reservoir adapted to receive a quantity of water. Projecting from one face of the reservoir in spaced relation to each other are burners 6 and 7, a reflector 8 being carried by the burners. The top of the reservoir includes a neck 9 closed by a threaded cap and by means of which water is deposited in the. reservoir. This reservoir is intended to contain suflicient water to supply all the illuminating means of the structure. The top of the reservoir is also provided with threaded openings 10 and 10, the purpose of which will be hereinafter described.

The bottom 11 of the reservoir is provided with relatively large spaced openings 12 and 13, while depending from the bottom and through said openings are longitudinally tapered valve cases 14 and 15, the end portion of each case having outlet openings 16 to permit the discharge of water. Also depending from the bottom 11 of the reservoir are threaded collars 17 and 18, each collar surrounding one of the valve cases.

In order to permit the generation of gas, containers 19 and 20 are used, each container having a threaded neck 21 adapted to engage the threaded collar depending from the reservoir. By this means the containers are disposed in spaced relation to each other and beneath the reservoir. These containers are intended to receive carbide or like compound for use in generating gas.

Conduits 22 and 23 are provided, the conduits 22 connecting the burners 6 with the container 19, while the conduits 23 connect the burners 7 with the container 20, and by means of which the gas generated within the containers is conveyed to the burners.

Under normal conditions it is of course only desired that one source of light be used and in order to permit, for instance the burner 6 to operate without the burner 7 and without requiring a supply of gas from the burner 20, there is provided a novel valve mechanism comprising a solid longitudinally tapered valve body 24, the upper end portion 25 of the body being threaded, while the lower end portion 26 is adapted to close the openings 16 in the valve casing. One of said valves is provided for each of the containers, said valves being disposed in the openings 10 and 10*. Each valve is provided with a handle 27 by means of which the valve may be operated to open or close the openings 16. Vith this novel arrange- 100 ment it is not necessary to extend the valve casings entirely through the reservoir, but simply from the bottom of the reservoir into the containers 19 and 20. Both valves, however, extend through the reservoir.

WVhen it is desired to use the lamp, either one of the valves may be operated, for instance, the valve disposed in the casing 19 may be rotated so as to permit the passage of water from the reservoir through the 110 valve casing and into the container to cause the generation of gas Within the contalner 19.

burner 26; Shouldsthe conduit22 (become clogged so as to interfere with the supply of gas, or should any other difiiculty arise in connection with the means used to supply the gas to the burner .6, the valve disposed in the casing may be rotated so as to close-the openings in the casing "and thus prevent the generation of gas. The valve in the casing 19 is then'operated to permit" the discharge of water into the container 20.

The gas-from the container 201 passes through theconduit' 23 to the burner 7. In

this way there is no danger of the miner. being without some means of illumination. Furthermore, it will; be noted that the burners of this lamp are independent so that damage to one burner will not render the entire lamp inoperative, as the opposite burner may -still-be used. Both containers, however, use thesame water supply so that a considerablequantity of water may always be -maintained; On the other hand,should it'be desired to increase theintensity of the illumination, bot-h burners may be used simultaneously by the operation of both valves to -permit the generation ofgas in the burners '19 and 20.

From the foregoing itwill be readily seen This gas rises to the top of the con.-v tamer. and throughlthev conduit 22 .to the.

vice whichdoes not occupy any more space than 't-he con'ventionalformv of miners lamp.

What IS- claimed is In an acetylene lamp including a carbide container and a Water container. located thereabove water feed'means comprising an elongated tube-depending from the bottom of the water containerand having itslower end formed witha constricted extension provide'd'with periorations, and a' rod threaded through the top of the'water container and extending within said tube, the diameter of said 'rodbemg considerably less than that of the tube to define an annular space about the rod, and said rod beingiformed with. a

reduce-d extensionfitting within the constricted end ofthe-tube for controlling the degree'ot opening of the perforations.

In testimony whereof-- I hereunto affix my signature.-

-, SAMUEL ,T. SCOBY (ill 

